کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1311024 | 975273 | 2005 | 5 صفحه PDF | دانلود رایگان |
The reaction of [Pd(OAc)2(py)2] with [Li((OEt2)2.5)][B(C6F5)4] was conducted with intent to generate the cationic palladium complex [Pd(OAc)(py)3][B(C6F5)4], (2, py = pyridine). A single crystal structure of this material, however, reveals a 1-D polymer structure formed by the self-assembly of alternating dicationic ([Pd(py)4]2+) and neutral ([Pd(OAc)2(py)2]) palladium units bridged by acetato linkages to give [Pd(py)4][Pd(OAc)2(py)2][B(C6F5)4]2 (3). These two palladium sites are produced by disproportionation of the pyridine ligands in [Pd(OAc)(py)3][B(C6F5)4]. Proton NMR studies confirm the existence of a solvent dependent equilibrium between [Pd(py)4]2+, [Pd(OAc)2(py)2] and [Pd(OAc)(py)3]+.
Crystal structure analysis of a cationic palladium complex reveals a 1-D polymer structure formed by the self-assembly of alternating ([Pd(py)4]2+) (4) and ([Pd(OAc)2(py)2]) (1) units bridged by acetato linkages. Proton NMR studies have demonstrated that there is a dynamic equilibrium in solution involving [Pd(OAc)(py)3]+ (2).Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 358, Issue 12, 1 August 2005, Pages 3478–3482